Input validation error in Perl - CVE-2010-4777
Published: February 10, 2014 / Updated: August 11, 2020
Vulnerability identifier: #VU42051
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2010-4777
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Perl
Affected software:
Perl
Perl
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
The Perl_reg_numbered_buff_fetch function in Perl 5.10.0, 5.12.0, 5.14.0, and other versions, when running with debugging enabled, allows context-dependent attackers to cause a denial of service (assertion failure and application exit) via crafted input that is not properly handled when using certain regular expressions, as demonstrated by causing SpamAssassin and OCSInventory to crash.
How to mitigate CVE-2010-4777
Install update from vendor's website.
Sources
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=628836
- http://forums.ocsinventory-ng.org/viewtopic.php?id=7215
- http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
- http://lists.opensuse.org/opensuse-updates/2011-05/msg00025.html
- https://bugzilla.redhat.com/show_bug.cgi?id=694166
- https://listi.jpberlin.de/pipermail/postfixbuch-users/2011-February/055885.html
- https://rt.perl.org/Public/Bug/Display.html?id=76538